I was probably an MLB pitcher if not for wiffle ball - I ruined my elbow trying to throw curves and screwballs, and chased elbow problems my entire HS career.
Totally worth it though.
I had an unhittable dropball, and learned to throw a real knuckleball with a whiffle ball.
My real knuckleball would knuckle about 30% of the time, but one night playing American Legion ball, I couldn’t miss. I was Phil f*cking Neikro. I don’t think I ever had as much fun on the mound, because a good moving knuckleball makes hitters look stupid, and I, my team, and the umpire were all laughing our asses off. I was never able to repeat that night again.